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1999•Journal of the Ceramic Society of JapanOpen access

Improved Silver-Palladium Internal Electrodes for Multilayer Ceramic Devices (Part 2)-Properties and Evaluation Paste of Ag-Pd(70-30) Alloy Powders.

Ryousuke Ueyama, Kazuyuki KAMADA, Masahiro Harada, Tamotsu Ueyama, Takashi Yamamoto, Tadashi Shiosaki, Kiyoshi KURIBAYASHI

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Abstract

Physical and electrical properties of three types of Ag-Pd pastes, consist of different metal fine powders, a coprecipitated, an agglomerated alloy made by heat treatment and a dispersed alloy produced by improved pulverization method, have been studied. The dispersed alloy powder paste shows a high packing density (6.3g/cm3) of dried film compared to others. The film shows a lower expansion at around 500°C and a lower shrinkage from 700 to 1100°C and a lower electrical resistivity after firing. The results indicated that the paste having an improved pulverized Ag-Pd alloy is superior to other two for internal electrode material for multilayer ceramic device.

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Physical and electrical properties of three types of Ag-Pd pastes, consist of different metal fine powders, a coprecipitated, an agglomerated alloy made by heat treatment and a dispersed alloy produced by improved pulverization method, have been studied. The dispersed alloy powder paste shows a high packing density (6.3g/cm3) of dried film compared to others. The film shows a lower expansion at around 500°C and a lower shrinkage from 700 to 1100°C and a lower electrical resistivity after firing. The results indicated that the paste having an improved pulverized Ag-Pd alloy is superior to other two for internal electrode material for multilayer ceramic device.

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Available abstract

Physical and electrical properties of three types of Ag-Pd pastes, consist of different metal fine powders, a coprecipitated, an agglomerated alloy made by heat treatment and a dispersed alloy produced by improved pulverization method, have been studied. The dispersed alloy powder paste shows a high packing density (6.3g/cm3) of dried film compared to others. The film shows a lower expansion at around 500°C and a lower shrinkage from 700 to 1100°C and a lower electrical resistivity after firing. The results indicated that the paste having an improved pulverized Ag-Pd alloy is superior to other two for internal electrode material for multilayer ceramic device.

Key concepts: Materials science, Alloy, Shrinkage, Ceramic, Electrical resistivity and conductivity, Electrode, Composite material, Palladium

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Improved Silver-Palladium Internal Electrodes for Multilayer Ceramic Devices (Part 2)-Properties and Evaluation Paste of Ag-Pd(70-30) Alloy Powders. — Research Paper | ScholarLens